Mather is a powerful, simple-to-use, no BS expression-based computation engine.

In addition to basic calculator arithmetic, it supports all of the following.

Powered by Math.js.

* Variables

* User-defined functions

* Easily-accessible math constants, e.g. 'pi'

* Complex math expression evaluation

* Trigonometric functions

* Unit conversions (and more general unit arithmetic)

* Complex numbers

* Matrices

* and more

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